Acuña Cactus

Sclerocactus johnsonii subsp. erectocentrus, synonyms including Echinomastus erectocentrus, is a subspecies of cactus, known by the common names redspine fishhook cactus, redspine butterfly cactus, acuña cactus, needle-spine pineapple cactus, red pineapple cactus, and purple-spine viznagita. It is native to Arizona in the United States.

This cactus grows up to about 34 cm (13.4 in) tall by 10 cm (3.9 in) wide. There are many spines on each areole, the central ones up to 4.4 cm (1.7 in) long. The spines are purple, pink, or white with brown tips. The flower is up to 6 cm (2.4 in) long by 9 cm (3.5 in) wide and has white, pink, or lavender tepals with greenish, brown, or reddish coloration at the bases. It is the first cactus to bloom in Organ Pipe Cactus National Monument, flowering in early March.